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🌍 Late 1800s–Early 1900s: Growing Tensions & Alliances

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🌍 Late 1800s–Early 1900s: Growing Tensions & Alliances

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1882: Formation of the Triple Alliance between Germany, Austria-Hungary, and Italy.

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1894: France and Russia form a defensive alliance, countering the Triple Alliance.

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1904: Britain and France sign the Entente Cordiale, strengthening diplomatic ties.

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1907: Britain joins with France and Russia to form the Triple Entente.

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1908: Austria-Hungary annexes Bosnia and Herzegovina, angering Serbia and Russia

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1911: Second Moroccan Crisis—Germany challenges French influence in North Africa, straining relations with Britain and France.

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1912–1913: Balkan Wars—Serbia expands its territory, heightening tensions with Austria-Hungary.

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28 June 1914: Archduke Franz Ferdinand of Austria-Hungary is assassinated in Sarajevo by Gavrilo Princip, a Bosnian Serb nationalist.

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23 July 1914: Austria-Hungary sends an ultimatum to Serbia.

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25 July 1914: Serbia responds, agreeing to most demands but not all.

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28 July 1914: Austria-Hungary declares war on Serbia.

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30 July 1914: Russia begins mobilizing troops to support Serbia.

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1 August 1914: Germany declares war on Russia.

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3 August 1914: Germany declares war on France.

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4 August 1914: Britain declares war on Germany after German troops invade Belgium.